2520611273 has 4 divisors (see below), whose sum is σ = 2588735940. Its totient is φ = 2452486608.

The previous prime is 2520611263. The next prime is 2520611279. The reversal of 2520611273 is 3721160252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 976750009 + 1543861264 = 31253^2 + 39292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2520611273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520611279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34062278 + ... + 34062351.

It is an arithmetic number, because the mean of its divisors is an integer number (647183985).

Almost surely, 2^2520611273 is an apocalyptic number.

It is an amenable number.

2520611273 is a deficient number, since it is larger than the sum of its proper divisors (68124667).

2520611273 is an equidigital number, since it uses as much as digits as its factorization.

2520611273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68124666.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2520611273 is about 50205.6896476883. The cubic root of 2520611273 is about 1360.9284449248.

The spelling of 2520611273 in words is "two billion, five hundred twenty million, six hundred eleven thousand, two hundred seventy-three".